WO2023147722A1 - Dispositif d'élimination de poussière de centrale photovoltaïque - Google Patents

Dispositif d'élimination de poussière de centrale photovoltaïque Download PDF

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Publication number
WO2023147722A1
WO2023147722A1 PCT/CN2022/116789 CN2022116789W WO2023147722A1 WO 2023147722 A1 WO2023147722 A1 WO 2023147722A1 CN 2022116789 W CN2022116789 W CN 2022116789W WO 2023147722 A1 WO2023147722 A1 WO 2023147722A1
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WO
WIPO (PCT)
Prior art keywords
brush
dust removal
removal device
power station
photovoltaic power
Prior art date
Application number
PCT/CN2022/116789
Other languages
English (en)
Chinese (zh)
Inventor
李福臣
孙巍
常荣
杨谅
张毅
饶甦
刘黎丽
鲁如东
Original Assignee
中工国际工程股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中工国际工程股份有限公司 filed Critical 中工国际工程股份有限公司
Publication of WO2023147722A1 publication Critical patent/WO2023147722A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/10—Cleaning arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the application belongs to the technical field of photovoltaics, and in particular relates to a dust removal device for a photovoltaic power station.
  • Photovoltaic power plants use solar light to generate electricity and can transmit electricity to the grid.
  • photovoltaic power generation as one of the green energy sources, is widely used, and the construction and scale of photovoltaic power stations are also increasing.
  • the dust removal device of the photovoltaic power station has an important impact on the power generation efficiency of the photovoltaic power station.
  • the dust and debris deposited on the photovoltaic panel will affect its absorption of light energy, which will significantly reduce the power generation efficiency of the photovoltaic power station.
  • the dust removal method of photovoltaic power plants is mainly to manually spray water to the photovoltaic panels through water trucks, or to use automatic water spray devices to spray water to the photovoltaic panels for cleaning, which requires a lot of manpower and material resources, and consumes a lot of energy. water resources.
  • the present disclosure is proposed to provide a photovoltaic power plant dust removal device that overcomes the above problems or at least partially solves the above problems.
  • the embodiment of the present application proposes a dust removal device for a photovoltaic power station, the dust removal device for a photovoltaic power station includes a bracket, at least one scouring structure and at least one air injection structure; wherein,
  • the scouring structure includes a brush rod and a brush, the brush rod is rotatably connected to the bracket, the brush is connected to the brush rod, and the rotation of the brush rod drives the rotation of the brush to clean the photovoltaic plate dust;
  • the air injection structure includes an air pipe and a plurality of air holes, the air pipe is connected between the brush rod and the brush, the plurality of air holes are arranged on the air pipe at intervals, and the air holes can eject gas to Clean the photovoltaic panels of deposited dirt.
  • the brush rod includes a first end and a second end oppositely disposed, and the first end is rotatably connected to the bracket;
  • the photovoltaic power plant dust removal device also includes a driver
  • the output end of the driver is connected to the first end of the brush rod, and the driver drives the first end of the brush rod to rotate around the bracket.
  • the photovoltaic power station dust removal device also includes a connecting rod and a rotating shaft;
  • One end of the connecting rod is connected to the output end of the driver, and the other end of the connecting rod is connected to the rotating shaft;
  • the rotating shaft passes through the bracket, and the rotating shaft is connected between the first end of the brush rod and the other end of the connecting rod;
  • the driver drives the connecting rod to move, the connecting rod drives the rotating shaft to rotate on the bracket, and the brush rod is linked with the rotating shaft so that the first end of the brush rod rotates around the bracket .
  • the photovoltaic power plant dust removal device also includes an air compressor connected to the air pipe;
  • the air compressor inputs gas into the air pipe so that the gas is ejected from the air holes.
  • the photovoltaic power plant dedusting device further includes a controller, and the controller is electrically connected to the driver and the air compressor respectively;
  • the controller controls the driver to work at a first preset frequency, and the controller controls the air compressor to work at a second preset frequency;
  • the first preset frequency is greater than or equal to the second preset frequency.
  • the driver, the air compressor, and the controller are respectively electrically connected to the photovoltaic panel;
  • the driver, the air compressor, and the controller can all obtain electrical energy from the photovoltaic panel.
  • the length of the brush is less than or equal to the length of the brush rod.
  • connection method of the brush and the brush rod includes at least one of hot-melt bonding and adhesive bonding.
  • the material of the brush includes at least one of nylon and chemical fiber.
  • the photovoltaic power station dust removal device of the present disclosure includes a bracket, at least one scouring structure and at least one air injection structure; wherein, the scouring structure includes a brush rod and a brush, and the brush rod is rotatably connected to the bracket, The brush is connected to the brush rod, and the rotation of the brush rod drives the brush to rotate to clean the dust on the photovoltaic panel; the air spray structure includes an air pipe and a plurality of air holes, and the air pipe is connected to the Between the brush rod and the brush, the plurality of air holes are arranged at intervals on the air pipe, and the air holes can eject gas to clean dirt deposited on the photovoltaic panel.
  • Fig. 1 is a schematic structural view of a dust removal device for a photovoltaic power station described in an embodiment of the present application
  • Fig. 2 is a structural schematic diagram of a section A-A in Fig. 1 of a dust removal device for a photovoltaic power station described in an embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure in specific situations.
  • FIG. 1 to 2 it shows a schematic structural view of a photovoltaic power plant dust removal device described in the embodiment of the present application, which may specifically include: a bracket 10, at least one flushing structure and at least one air injection structure; wherein,
  • the scouring structure includes a brush bar 20 and a brush 21, the brush bar 20 is rotatably connected to the bracket 10, the brush 21 is connected to the brush bar 20, and the rotation of the brush bar 20 drives the brush 21 to rotate to clean the dust on the photovoltaic panel 60;
  • the air injection structure includes an air pipe 30 and a plurality of air holes 31.
  • the air pipe 30 is connected between the brush rod 20 and the brush 21.
  • a plurality of air holes 31 are arranged at intervals on the air pipe 30. The air holes 31 can eject gas to clean the photovoltaic panel 60 Deposited dirt.
  • the photovoltaic power station dust removal device of the embodiment of the present application can clean the dust on the surface of the photovoltaic panel 60 through the brush bar 20 and the brush 21 of the scouring structure, without consuming water resources, and without consuming a lot of manpower and material resources, which greatly saves Reduce resource consumption and reduce production costs.
  • the dirt deposited on the photovoltaic panel 60 can be cleaned, and the dirt such as hard blocks deposited on the surface of the photovoltaic panel 60 can be strongly removed, and the dust removal efficiency of the dust removal device of the photovoltaic power station can also be improved, thereby improving the photovoltaic power plant. Power generation efficiency of the power station.
  • the material of the brush holder 20 may include at least one of PBT (Polybutylene Terephthalte, polybutylene terephthalate) and PC (Polycarbonate, polycarbonate).
  • PBT Polybutylene Terephthalte, polybutylene terephthalate
  • PC Polycarbonate, polycarbonate
  • the distance between the plurality of air holes 31 can be set to 8cm, 8.5cm, 9cm, etc., so that the plurality of air holes 31 are evenly spaced, and the dirt deposited on the photovoltaic panel 60 can be better. cleaning effect. It can be understood that the distance between the plurality of air holes 31 can be set according to the actual situation, which is not limited in this embodiment of the present application.
  • the diameter of the pores 31 may include any value in the range of 2-2.5 cm, and may also include 1.5 cm, 3 cm, etc.
  • the air outlet pressure of the air hole 31 can include any value in 10-15 bar, and can also include 8 bar, so that the gas ejected from the air hole 31 has a strong and effective cleaning effect on the dirt deposited on the photovoltaic panel 60 . It can be understood that, in practical applications, the aperture and air outlet pressure of the air hole 31 can be set according to actual needs, and the embodiment of the present application does not limit the specific aperture of the air hole 31 and the air outlet pressure.
  • the brush rod 20 includes a first end 201 and a second end 202 oppositely disposed, and the first end 201 is rotatably connected to the bracket 10 . From the first end 201 to the second end 202, the cross-sectional area of the brush bar 20 decreases successively. In this way, the cross-sectional area of the first end 201 where the brush rod 20 is rotationally connected to the bracket 10 is larger and has better strength, which prevents the brush rod 20 from being easily broken and lost during continuous reciprocating rotation, and increases the service life of the brush rod 20 . At the same time, the cross-sectional area of the second end 202 of the brush rod 20 is small, and the resistance to the rotation of the brush rod 20 is also small, which can improve the flexibility of the rotation of the brush rod 20, save materials, and reduce production costs.
  • the cross-sectional area of the first end 201 may include a width of 60 mm * a height of 20 mm
  • the cross-sectional area of the second end 202 may include a width of 40 mm * a height of 20 mm.
  • the cross-sectional areas of the first end 201 and the second end 202 may also be set according to actual needs, and the specific cross-sectional areas of the first end 201 and the second end 202 may not be limited in the embodiment of the present application.
  • the photovoltaic power plant dust removal device further includes a driver 40 , the output end of the driver 40 is connected to the first end 201 of the brush rod 20 , and the driver 40 drives the first end 201 of the brush rod 20 to rotate around the bracket 10 .
  • the brush bar 20 can be automatically rotated by the driver 40 , and the rotation range of the brush bar 20 can be controlled to improve the cleaning efficiency of the scouring structure on the photovoltaic panel 60 .
  • the photovoltaic power station dust removal device further includes a connecting rod 41 and a rotating shaft 42 , one end of the connecting rod 41 is connected to the output end of the driver 40 , and the other end of the connecting rod 41 is connected to the rotating shaft 42 .
  • the rotating shaft 42 passes through the bracket 10 , and the rotating shaft 42 is connected between the first end 201 of the brush rod 20 and the other end of the connecting rod 41 .
  • the driver 40 drives the connecting rod 41 to move, and the connecting rod 41 drives the rotating shaft 42 to rotate on the bracket 10 , and the brush rod 20 is linked with the rotating shaft 42 to make the first end 201 of the brush rod 20 rotate around the bracket 10 .
  • a connecting rod 41 and a rotating shaft 42 are provided, and the driver 40 and the brush rod 20 are connected through the connecting rod 41 and the rotating shaft 42, so that the connecting rod 41 transmits the power output by the driver 40, and the brush rod 20 acts on the rotating shaft 42.
  • the rotation can be flexibly realized on the bracket 10, and the space can be effectively used in the installation area of the dust removal device of the photovoltaic power station to improve the space utilization rate.
  • the photovoltaic power station dust removal device further includes an air compressor 50 connected to the gas pipe 30 , and the air compressor 50 inputs gas to the gas pipe 30 to make the gas eject from the air hole 31 .
  • the dust removal device of the photovoltaic power station can provide high-pressure gas to the air pipe 30 through the air compressor 50, so that the high-pressure gas is ejected from the air hole 31, and the cleaning effect on the dirt deposited on the surface of the photovoltaic panel 60 is improved by the high-pressure gas.
  • the photovoltaic power plant dust removal device further includes a controller, the controller is electrically connected to the driver 40 and the air compressor 50, and the controller controls the driver 40 to follow the first preset frequency, the controller controls the air compressor 50 to work according to the second preset frequency.
  • the first preset frequency is greater than or equal to the second preset frequency.
  • the controller may control the driver 40 to work at a frequency of 2 minutes every 12 hours, and control the air compressor 50 to work at a frequency of 2 minutes every 12 hours.
  • the air injection structure also performs air jet cleaning on the photovoltaic panel 60, which can improve the cleaning efficiency of the dust removal device of the photovoltaic power station.
  • the controller can also control the driver 40 to work at a frequency of 2 minutes every 12 hours. Since the surface of the photovoltaic panel 60 is not prone to deposit dirt in a short period of time, it can control the air compressor 50 to start work every 24 hours. 2 minutes frequency work. In this way, the dust removal device of the photovoltaic power station can have a better cleaning effect on the photovoltaic panel 60 while reducing energy consumption and saving energy.
  • first preset frequency and second preset frequency can be set according to specific requirements.
  • the frequency may not be limited.
  • the driver 40 , the air compressor 50 , and the controller are respectively electrically connected to the photovoltaic panel 60 , and the driver 40 , the air compressor 50 , and the controller can all obtain electric energy from the photovoltaic panel 60 . Since the photovoltaic panel 60 can generate electric energy, the driver 40, the air compressor 50 and the controller are electrically connected to the photovoltaic panel 60 respectively, so that the driver 40, the air compressor 50 and the controller can directly obtain electric energy from the photovoltaic panel 60 , to get the power source. There is no need to provide power supply separately, which is more convenient.
  • the length of the brush 21 is less than or equal to the length of the brush rod 20 .
  • the hairbrush 21 can be firmly connected to the brush rod 20, preventing the hairbrush 21 from being too long to be completely connected to the brush rod 20, causing the part not connected to the brush rod 20 to curl easily, and under the reciprocating rotation of the brush rod 20 The brush 21 is easily detached from the brush rod 20 and is worn out.
  • the edge distance between one end of the hairbrush 21 and the first end 201 of the brush bar 20 can be set to 5cm
  • the edge distance between the other end of the hairbrush 21 and the second end 202 of the brush bar 20 can be set to 2cm
  • the width of the hairbrush 21 can be Set to 8cm.
  • the foregoing distance may also be set according to actual needs, which may not be limited in this embodiment of the present application.
  • connection manner between the brush 21 and the brush rod 20 includes at least one of hot-melt bonding and adhesive bonding.
  • the brush 21 is connected stably and reliably with the brush rod 20 through simple and easy glue bonding or hot melt bonding.
  • the material of the brush 21 includes at least one of nylon and chemical fiber.
  • the nylon 612 material has good aging resistance, and the use of the nylon 612 material as the brush filament of the brush 21 can improve the service life of the scour structure.
  • the tensile strength of the nylon 612 brush filament at 23 degrees Celsius is greater than or equal to 55 MPa, and the Rockwell hardness is less than or equal to 116 MPa, which can be better adapted to the application environment of the brush 21, so that the brush 21 has good tensile strength and hardness.
  • the hair brush 21 can be renewed every year, so as to prevent the cleaning efficiency of the photovoltaic panel 60 from being reduced by the wear and tear of the hair brush 21.
  • the diameter of the filaments of the brush 21 may include any value from 0.55 mm to 0.75 mm, and the embodiment of the present application may not limit the specific diameter of the filaments of the brush 21 .
  • the photovoltaic power station dust removal device described in the embodiment of the present application can at least include the following advantages:
  • the dust removal device for a photovoltaic power station includes a bracket, at least one scouring structure, and at least one air injection structure; wherein, the scouring structure includes a brush rod and a brush, the brush rod is rotatably connected to the bracket, and the The brush is connected to the brush rod, and the rotation of the brush rod drives the rotation of the brush to clean the dust on the photovoltaic panel; the air spray structure includes an air pipe and a plurality of air holes, and the air pipe is connected to the brush rod Between the brush and the brush, the plurality of air holes are arranged on the air pipe at intervals, and the air holes can eject gas to clean the dirt deposited on the photovoltaic panel.
  • references to the terms “one embodiment,” “some embodiments,” “exemplary embodiments,” “example,” “specific examples,” or “some examples” are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present disclosure.
  • schematic representations of the above terms do not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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  • Photovoltaic Devices (AREA)
  • Cleaning In General (AREA)

Abstract

La présente invention concerne un dispositif d'élimination de poussière d'une centrale photovoltaïque, ledit dispositif comprenant un support (10), au moins une structure de récurage et au moins une structure de soufflage d'air ; la structure de récurage comprend des tiges de brosse (20) et des brosses (21), les tiges de brosse (20) sont reliées de manière rotative au support (10), les brosses (21) sont reliées aux tiges de brosse (20), les tiges de brosse (20) tournent pour entraîner les brosses (21) en rotation de façon à nettoyer la poussière sur un panneau photovoltaïque (60) ; la structure de soufflage d'air comprend un tube d'air (30) et une pluralité de trous d'air (31), et le tube d'air (30) est relié entre la tige de brosse (20) et la brosse (21) ; la pluralité de trous d'air (31) sont agencés à des intervalles sur le tube d'air (30), et les trous d'air (31) peuvent souffler de l'air pour nettoyer la saleté déposée sur le panneau photovoltaïque (60). Le dispositif décrit nettoie la poussière sur la surface du panneau photovoltaïque (60) au moyen de la structure de récurage, sans avoir besoin de consommer de l'eau et sans avoir besoin de consommer beaucoup de main-d'œuvre et de matériau, ce qui permet d'économiser considérablement la consommation de ressources et de réduire les coûts de production. De plus, en combinant la structure de soufflage d'air pour nettoyer la saleté déposée sur le panneau photovoltaïque, l'efficacité d'élimination de poussière du dispositif d'élimination de poussière d'une centrale photovoltaïque est également améliorée.
PCT/CN2022/116789 2022-02-07 2022-09-02 Dispositif d'élimination de poussière de centrale photovoltaïque WO2023147722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210116970.2A CN114522920B (zh) 2022-02-07 2022-02-07 一种光伏电站除尘装置
CN202210116970.2 2022-02-07

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CN117176056B (zh) * 2023-09-07 2024-02-02 河北隋昌节能科技有限公司 一种光伏板清扫设备及光伏板清扫方法

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